| Paper No. 56-0 | ||
| EVOLUTION OF A CHEMICAL WEATHERING DOMINATED LANDSCAPE, NORTHERN SWEDEN | ||
|
DIXON, John C., Geosciences, Univ of Arkansas, Ozark Hall 113, Fayetteville, AR 72701, jcdixon@uark.edu, THORN, Colin E., Geography, Univ of Illinois, 220 Davenport Hall, 607 S. Mathews, Urbana, IL 61801, and DARMODY, Robert G., Natural Resouces and Environmental Sciences, Univ of Illinois, 1102 S. Goodwin, Urbana, IL 61801 Karkevagge is a 5Km long U-shaped valley in Swedish Lapland formed by glacial erosion some 8-10K B.P. The large scale form of this valley is consistent with its glacial origin. However, since regional deglaciation, the geomorphic evolution of the valley has been overwhelmingly dominated by non-glacial landscape forming processes. Landscape evolution has been dominated by geochemical processes, which account for the greatest amount of total mass removal from the valley annually. Despite the overwhelming predominance of these processes, the fundamental landscape form has been little changed since deglaciation, with only modest meso-scale modifications by contemporary gravity related processes. It is apparent that the contemporary landscape geometry is relict from Glacial Maximum and immediately proceeding paraglacial times. It is apparent that weathering -dominated landscapes may not necessarily reflect dominant landscape forming processes, but rather, may simply display the effects of the last surficial high intensity/low frequency event to impact the landscape. | ||
|
North-Central Section (36th) and Southeastern Section (51st), GSA Joint Annual Meeting (April 3–5, 2002)
| ||
| Session No. 56 Weathering and Landscape Evolution Hyatt Regency Hotel: Patterson Ballroom C 1:00 PM-3:00 PM, Friday, April 5, 2002 | ||
© Copyright 2002 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions. | ||